JPS645541U - - Google Patents
Info
- Publication number
- JPS645541U JPS645541U JP9940187U JP9940187U JPS645541U JP S645541 U JPS645541 U JP S645541U JP 9940187 U JP9940187 U JP 9940187U JP 9940187 U JP9940187 U JP 9940187U JP S645541 U JPS645541 U JP S645541U
- Authority
- JP
- Japan
- Prior art keywords
- tuner
- output
- comparator
- integrator
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Noise Elimination (AREA)
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図。第２図は従来例の構成を示すブロツク図。
１および２…中間周波増幅、検波器、３…信号
切替スイツチ、５および６…バンドパスフイルタ
、７および８…直流減算器、９および２５…比較
器、１３および１４…フロントエンド、１５およ
び１６…バツフア増幅器、２２…コンパレータ出
力切替スイツチ、２３および２４…積分器、２６
…加算器、２７…判別器。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of a conventional example. 1 and 2...Intermediate frequency amplification, detector, 3...Signal changeover switch, 5 and 6...Band pass filter, 7 and 8...DC subtractor, 9 and 25...Comparator, 13 and 14...Front end, 15 and 16 ...Buffer amplifier, 22...Comparator output changeover switch, 23 and 24...Integrator, 26
...Adder, 27...Discriminator.
Claims (1)
のチユーナの検波出力と第２のチユーナの検波出
力とを切替えて後段に供給する信号切替手段と、
チユーナ・シグナルメータ出力の直流分からマル
チパスノイズを減算したそれぞれのチユーブに対
するレベルを比較する第１比較器と、第１のチユ
ーナのマルチパスノイズを積分する第１の積分器
と、第２のチユーナのマルチパスノイズを積分す
る第２の積分器と、第１の積分器の出力レベルと
第２の積分器の出力レベルとを比較する第２比較
器と、第１比較器の両入力の和が所定値以上か否
かを判別しかつ判別出力により第１比較器の出力
または第２比較器の出力を選択する判別手段とを
備え、判別手段により選択された一方の比較器の
出力により信号切替手段を切替えることを特徴と
するＦＭチユーナのスペースダイバーシテイ装置
。 a first tuner, a second tuner, and a first tuner;
a signal switching means for switching between the detection output of the first tuner and the detection output of the second tuner and supplying the same to a subsequent stage;
A first comparator that compares the levels for each tube after subtracting multipath noise from the direct current output of the tuner/signal meter output, a first integrator that integrates the multipath noise of the first tuner, and a second tuner. a second integrator that integrates multipath noise, a second comparator that compares the output level of the first integrator and the output level of the second integrator, and the sum of both inputs of the first comparator. determination means for determining whether or not is greater than a predetermined value and selecting the output of the first comparator or the output of the second comparator based on the determination output; An FM tuner space diversity device characterized by switching switching means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9940187U JPS645541U (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9940187U JPS645541U (en) | 1987-06-30 | 1987-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645541U true JPS645541U (en) | 1989-01-12 |
Family
ID=31326526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9940187U Pending JPS645541U (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645541U (en) |
-
1987
- 1987-06-30 JP JP9940187U patent/JPS645541U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS645541U (en) | ||
| JPH0191353U (en) | ||
| JP3124119B2 (en) | Receiving machine | |
| JPS6246347Y2 (en) | ||
| JPH0352061Y2 (en) | ||
| JPS6312918U (en) | ||
| JPS63102339U (en) | ||
| JPS6246354Y2 (en) | ||
| JPS6390374U (en) | ||
| JPS6364169U (en) | ||
| JPS6438850U (en) | ||
| JPS6221676U (en) | ||
| JPH0427629U (en) | ||
| JPS63129339U (en) | ||
| JPH0327133U (en) | ||
| JPH03113524U (en) | ||
| JPS61116447U (en) | ||
| JPH0273886U (en) | ||
| JPH01149137U (en) | ||
| JPS6045540U (en) | IF automatic switching control circuit | |
| JPH0224630U (en) | ||
| JPS5961671U (en) | Ghost removal circuit for television receivers | |
| JPS63185364U (en) | ||
| JPH0310627U (en) | ||
| JPH0420740U (en) |